What Does a Marine Biologist Study?

What kinds of living and nonliving things do marine biologists study?

Marine biologists study a variety of living and nonliving things in the marine environment.

Marine biologists study both living and non-living things in their surroundings where they do research. The living things they study are marine organisms like fishes, sharks, whales, crustaceans, deep-sea organisms, sea plants, microbes, and many more living creatures present in the marine environment. They study their behavior, feeding habits, interaction with other organisms, their role in the ecosystem, mating behavior, etc.

The non-living things a marine biologist study include the physical and chemical environment of the marine habitat, geology of the area, concentration of salt, and other molecules that affect marine biology.